RunRyder RC
WATCH
 1 page 2635 views Post Reply
Home✈️Aircraft🚁HelicopterAerial Photography and Video › Trex 700 and Plettenberg HP 370/40/A2 motor
09-18-2009 08:08 AM  11 years ago
Topic Vote0Post 1
Trex_Cam

rrNovice

Istanbul

MyPosts All Forum Topic
Trex 700 and Plettenberg HP 370/40/A2 motor
we have seen that this motor works with maxi joker 2 at good performance. At same Gear ratio (1:10.9) we used this motor with trex 700 and connected 5kg. camera mount for aerial video. you will find photos taken with this below. But we have some problems.

first of all motor overheated. is gear ratio ideal for this type of operation? if not what is the ideal flight weight and gear ratio?

[img] /fastphoto/79183/IMG_0933.jpg [desc]
[img] /fastphoto/79183/IMG_0931.jpg [desc]

SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 09:03 AM  11 years ago
chris24g

rrVeteran

Hayward, CA

MyPosts All Forum Topic
since the 370 is an inrunner, cool air getting to the motor will be very important. jokers have the motor inverted and outside the canopy in cool air.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-18-2009 10:54 AM  11 years ago
Seablade

rrKey Veteran

earth

MyPosts All Forum Topic
How is the airflow into the top, or in your case, the bottom of the motor? You see where it is on the Jokers sticking right up through the top of the canopy with no obstructions. Yours looks a bit stifled."Vini, Vidi, Velcro"
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-18-2009 11:59 AM  11 years ago
Trex_Cam

rrNovice

Istanbul

MyPosts All Forum Topic
But we don't use any canopy in this system.
SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 12:10 PM  11 years ago
cranester

rrKey Veteran

Bogota, Colombia

MyPosts All Forum Topic
Whats your head speed with that gearing? I fly my t rrex with 3 -4 kg at 1800/1900 head speed and it runs very cool, motor is a Z-Power 560Kv and I use a 13T pinion

Two of your images are not working
Juan Crane
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-18-2009 12:19 PM  11 years ago
nooobs

rrElite Veteran

web

MyPosts All Forum Topic
...
SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 12:20 PM  11 years ago
Trex_Cam

rrNovice

Istanbul

MyPosts All Forum Topic
We use 12S Align 5200
and we use trex stock Main gear and 15T pinion.
SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 12:25 PM  11 years ago
Trex_Cam

rrNovice

Istanbul

MyPosts All Forum Topic
Which turn direction is true of motor when is runing?
A or B?

SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 12:38 PM  11 years ago
cranester

rrKey Veteran

Bogota, Colombia

MyPosts All Forum Topic
Direction is irrelevant, it can run both directions.
What's your head speed, if its to low, the heli may require alot of pitch to fly and the motor can overheat.
Juan Crane
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-18-2009 12:48 PM  11 years ago
nooobs

rrElite Veteran

web

MyPosts All Forum Topic
...
SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 01:01 PM  11 years ago
Trex_Cam

rrNovice

Istanbul

MyPosts All Forum Topic
Our head speed about 1800 rpm.
We will try 10S lipo.

direction is not irrelevant because you can see in picture for cooling fan direction.
SHARE  PM  EMAIL  Attn:RR  Quote
09-18-2009 02:24 PM  11 years ago
DTM

rrApprentice

Belgium

MyPosts All Forum Topic
I think your gearing is wrong, you should have around 1400 rpm imho. But from the looks of you pinion gear, you are stuck there. I also have some reservations about hauling 5 kg on a single gear reduction and a pinion that looks like it has a wall thickness of 1.5mm...
Are you sure the Joker had a reduction of 1:10? For that motor I'd opt for 1:13.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-18-2009 03:13 PM  11 years ago
cranester

rrKey Veteran

Bogota, Colombia

MyPosts All Forum Topic
Yeah that pinion looks scrayJuan Crane
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-19-2009 09:54 PM  11 years ago
iflybyu77

rrKey Veteran

Fort Wayne, IN

MyPosts All Forum Topic
1400rpm on 700mm blades is probably a little low. I'd target 1500-1600.
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
09-19-2009 10:14 PM  11 years ago
ßeta

rrNovice

ToonTown

MyPosts All Forum Topic
That motor is old school.... get rid of it and get a Xera outrunner. It'll run about considerably cooler than that Pletty.

And that pinion is just whacked. no wall thickness to speak of. accident waiting to happen.
SHARE  PM  EMAIL  Attn:RR  Quote
09-20-2009 12:42 AM  11 years ago
Seablade

rrKey Veteran

earth

MyPosts All Forum Topic
I was wondering if you could fill the center of the pinion with electrical solder or epoxy to give it some more strength?"Vini, Vidi, Velcro"
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-20-2009 12:56 AM  11 years ago
chris24g

rrVeteran

Hayward, CA

MyPosts All Forum Topic
Nothing wrong with old school.

What the plettenberg has is a solid track record and reputable manufacturing. When you have 5 grand in the air, you don't want to think about whether all the production defects have been identified for a new component by a company new to the game.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-21-2009 09:35 AM  11 years ago
DTM

rrApprentice

Belgium

MyPosts All Forum Topic
1400rpm on 700mm blades is probably a little low. I'd target 1500-1600.
Agreed, I was thinking 800 mm blades. (which would probably also be an improvement)
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
09-27-2009 09:47 PM  11 years ago
signwiz

rrApprentice

Lexington, KY

MyPosts All Forum Topic
^^^ ignorant about electric helicopters ^^^
I'm reading and learning...Give me more time. Alot goes into a heavy lifting machine and have 10,000 in the air with my number one machine not including camera gear....shesh, I m really working hard to understand all of this and having limited time to study, Not a walk in the park, "Cheers" to all that share this great info!!!!
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 1 page 2635 views Post Reply
Home✈️Aircraft🚁HelicopterAerial Photography and Video › Trex 700 and Plettenberg HP 370/40/A2 motor
Print TOPIC

 5  Topic Subscribe

Saturday, January 16 - 2:18 am - Copyright © 2000-2021 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online